CN107618197A - A kind of production technology of the composite membrane of high-peeling strength - Google Patents
A kind of production technology of the composite membrane of high-peeling strength Download PDFInfo
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- CN107618197A CN107618197A CN201710617745.6A CN201710617745A CN107618197A CN 107618197 A CN107618197 A CN 107618197A CN 201710617745 A CN201710617745 A CN 201710617745A CN 107618197 A CN107618197 A CN 107618197A
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Abstract
The invention discloses a kind of production technology of the composite membrane of high-peeling strength, include the biaxial tension processing step of PET base material；With aluminum oxide or titanium dioxide vacuum vapor deposition method deposited barrier layers step；Deposited metal layer step；Compound first PE layer steps；Print steps；Spray uv-curable glue step；Compound 2nd PE layer steps, and irradiated by ultraviolet light, obtain the composite membrane of high-peeling strength.The composite membrane for the high-peeling strength that production technology provided by the invention obtains, there is higher water proofing property, soaked rear peel strength is used as packing material still up to 2.5N/15mm, and it, which prints, is not easy dizzy dye, abrasion, has preferable application prospect.
Description
Technical field
The present invention relates to a kind of preparing technical field of high polymer material, more particularly to a kind of composite membrane of high-peeling strength
Production technology.
Background technology
The preparation of composite membrane be by single thin film after typography again by dry-lamination process or extrusion it is compound
Technique progress is compound, is formed by curing composite membrane.
Current packaging film is generally all aluminum-plastic composite membrane, this plastic-aluminum combined because the chemical property of aluminium is more active
Under acid, alkali, hot and humid environment oxidation reaction easily occurs for film, so as to influence the outward appearance of composite membrane and service life.Composite membrane
As packaging film, its peel strength directly affects the quality of content, and the composite membrane after delamination is also easily further invaded in itself
Erosion, so as to accelerate the rotten of content.
And steeped to applied to the packaging material being possible in the product of outdoor transport, polymer compound film usually requires that
Still there is preferable peel strength after water.This peel strength especially in outermost layer and metal level or provides mechanical support
It is particularly important between material layer.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of height with higher peel strength
The production technology of the composite membrane of peel strength；
The purpose of the present invention adopts the following technical scheme that realization：
A kind of production technology of the composite membrane of high-peeling strength, including：
The pre-treatment step of PET base material：Biaxial tension processing is carried out to PET base material；
Deposited barrier layers step：Using aluminum oxide or titanium dioxide as evaporation source, steamed in the side of PET base material by vacuum
Hair method deposits to obtain barrier layer；
Deposited metal layer step：Sputtering vacuum deposition is harrowed by copper in barrier layer surface and obtains metal level；
Compound first PE layer steps：In the PE layers of surface recombination the first of metal level；
Print steps：Printed after another side surface progress sided corona treatment to PET base material；
Spray solidification glue step：PET substrate surfaces spraying ultraviolet cured adhesive after printing；
Compound 2nd PE layer steps：The compound 2nd PE layers of PET substrate surfaces after solidification glue is sprayed, and pass through ultraviolet light
Irradiation, obtains the composite membrane of high-peeling strength.
Further, stretching step, thermostabilization step and the pre- step of relaxing that the pre-treatment step of PET base material includes carrying out successively
Suddenly.
Further, the pre-treatment step of PET base material includes the following steps carried out successively：
1) in 120-140 DEG C, PET base material longitudinally, laterally etc. is stretched 2.0-4.0 times to power；
2) by the PET base material after stretching in 200-210 DEG C of thermostabilization；
3) PET base material after thermostabilization is subjected to pre- relaxation processing in 140-160 DEG C.
Further, in deposited metal layer step, evaporation source is used as using aluminium film material.
Further, in compound first PE layer steps, using the compound first PE layers of extruding-out process, the material of the first PE layers
Expect for low density polyethylene (LDPE).
Further, spray in solidification glue step, the quantity for spray of ultraviolet cured adhesive is 2-5mL/m2。
Further, in compound 2nd PE layer steps, using the compound 2nd PE layers of thermal bonding process.
Compared with prior art, the beneficial effects of the present invention are：
1) production technology provided by the invention, by carrying out biaxial tension processing to PET basic units, the height can be effectively improved
The mechanical performance of the composite membrane of peel strength, the barrier layer with being obtained by vacuum vapor deposition method have preferable compactness, can be with
Prevent the entrance of aqueous vapor；
2) present invention harrows sputtering vacuum deposition by copper by the surface of the barrier layer formed in vacuum vapor deposition method and obtains gold
Belong to layer, PET basic units, barrier layer and metal level three are tightly engaged into, and form one of superpower waterproof composite barrier；
3) composite membrane for the high-peeling strength that production technology provided by the invention obtains, there is higher water proofing property, it is soaked
Peel strength is still above 2.5N/15mm afterwards, and its printing is not easy dizzy dye, abrasion during as packing material, has preferable
Application prospect.
Embodiment
Below, with reference to embodiment, the present invention is described further, it is necessary to which explanation is, what is do not collided
Under the premise of, new embodiment can be formed between various embodiments described below or between each technical characteristic in any combination.
The present invention provides a kind of production technology of the composite membrane of high-peeling strength, including：
The pre-treatment step of PET base material：Biaxial tension processing is carried out to PET base material；
In this step, biaxial tension processing includes stretching step, thermostabilization step and step of relaxing in advance；Carry out PET basic units
Biaxial tension processing after, PET base material has preferable pliability, its pressure, temperature, humidity etc. change under can still keep compared with
The good high osmosis to steam, oxygen, and the printing performance of the PET base material after processing improves；
Deposited barrier layers step：Using aluminum oxide or titanium dioxide as evaporation source, steamed in the side of PET base material by vacuum
Hair method deposits to obtain barrier layer；
The barrier layer is the main functional layer for playing antiseepage function of the composite membrane as the high-peeling strength, is steamed using vacuum
Sedimentation is sent out, the density of obtained barrier layer is high, high with the combined strength bination of PET base material, with higher peel strength and preferably
Anti-permeability；
Deposited metal layer step：Sputtering vacuum deposition is harrowed by copper in barrier layer surface and obtains metal level；
Metal level is as the functional layer being engaged with barrier layer, and it cooperatively plays antiseepage effect, using vacuum sputtering
Deposition is high with the combined strength bination of barrier layer；
Compound first PE layer steps：In the PE layers of surface recombination the first of metal level；
First PE layers are as one layer directly contacted with content；
Print steps：Printed after another side surface progress sided corona treatment to PET base material；
Spray solidification glue step：PET substrate surfaces spraying ultraviolet cured adhesive after printing；
Solidification glue is sprayed after printing, can be effectively prevented from printing-ink dizzy dye can be deformed by mechanical force；
Compound 2nd PE layer steps：The compound 2nd PE layers of PET substrate surfaces after solidification glue is sprayed, and pass through ultraviolet light
Irradiation, obtains the composite membrane of high-peeling strength.
For 2nd PE layers as outmost aspect, it has preferable permeability and gloss.
The composite membrane for the high-peeling strength that production technology provided by the invention obtains, block water with higher, hinder oxygen function,
As packing material, it, which prints, is not easy dizzy dye, abrasion, has preferable application prospect.
Embodiment 1：
A kind of production technology of the composite membrane of high-peeling strength, including：
The pre-treatment step of PET base material：The PET base material that thickness is 10 μm is taken to carry out biaxial tension processing, concrete operations are such as
Under：
1) in 130 DEG C, PET base material longitudinally, laterally etc. is stretched 3 times to power；
2) by the PET base material after stretching in 205 DEG C of thermostabilizations；
3) PET base material after thermostabilization is subjected to pre- relaxation processing in 150 DEG C；
Deposited barrier layers step：Using aluminum oxide as evaporation source, deposit to obtain by vacuum vapor deposition method in the side of PET base material
Thickness is 45nm barrier layer；
Deposited metal layer step：Using aluminium film material as evaporation source, sputtering vacuum deposition is harrowed by copper in barrier layer surface and obtained
25ng/cm2Metal level；
Compound first PE layer steps：It is by the compound first PE layers of extrinsion pressing, the first PE layers on the surface of metal level
Low density polyethylene (LDPE), the thickness of the first PE layers is 40 μm；
Print steps：Printed after another side surface progress sided corona treatment to PET base material；
Spray solidification glue step：PET substrate surfaces spraying ultraviolet cured adhesive after printing；
Ultraviolet cured adhesive effectively can play solidification to printing-ink, using after printing ink reduce dizzy dye,
The Probability of deformation；The quantity for spray of ultraviolet cured adhesive is 5mL/m2；
Compound 2nd PE layer steps：The compound 2nd PE layers of 330 DEG C of hot pressing of PET substrate surfaces after solidification glue is sprayed, the
The material of two PE layers is low density polyethylene (LDPE), and the thickness of the 2nd PE layers is 10 μm；And by ultraviolet light hardening with radiation, obtain high stripping
From the composite membrane of intensity.
Embodiment 2：
A kind of production technology of the composite membrane of high-peeling strength, including：
The pre-treatment step of PET base material：The PET base material that thickness is 10 μm is taken to carry out biaxial tension processing, concrete operations are such as
Under：
1) in 110 DEG C, PET base material longitudinally, laterally etc. is stretched 2.5 times to power；
2) by the PET base material after stretching in 210 DEG C of thermostabilizations；
3) PET base material after thermostabilization is subjected to pre- relaxation processing in 140 DEG C；
Deposited barrier layers step：Using titanium dioxide as evaporation source, deposited in the side of PET base material by vacuum vapor deposition method
To the barrier layer that thickness is 42nm；
Deposited metal layer step：Using aluminium film material as evaporation source, sputtering vacuum deposition is harrowed by copper in barrier layer surface and obtained
30ng/cm2Metal level；
Compound first PE layer steps：It is by the compound first PE layers of extrinsion pressing, the first PE layers on the surface of metal level
Low density polyethylene (LDPE), the thickness of the first PE layers is 30 μm；
Print steps：Printed after another side surface progress sided corona treatment to PET base material；
Spray solidification glue step：PET substrate surfaces spraying ultraviolet cured adhesive after printing；
Ultraviolet cured adhesive effectively can play solidification to printing-ink, using after printing ink reduce dizzy dye,
The Probability of deformation；The quantity for spray of ultraviolet cured adhesive is 3mL/m2；
Compound 2nd PE layer steps：The compound 2nd PE layers of 310 DEG C of hot pressing of PET substrate surfaces after solidification glue is sprayed, the
The material of two PE layers is low density polyethylene (LDPE), and the thickness of the 2nd PE layers is 15 μm；And by ultraviolet light hardening with radiation, obtain high stripping
From the composite membrane of intensity.
Embodiment 3：
A kind of production technology of the composite membrane of high-peeling strength, including：
The pre-treatment step of PET base material：The PET base material that thickness is 10 μm is taken to carry out biaxial tension processing, concrete operations are such as
Under：
1) in 130 DEG C, PET base material longitudinally, laterally etc. is stretched 4 times to power；
2) by the PET base material after stretching in 200 DEG C of thermostabilizations；
3) PET base material after thermostabilization is subjected to pre- relaxation processing in 160 DEG C；
Deposited barrier layers step：Using aluminum oxide as evaporation source, deposit to obtain by vacuum vapor deposition method in the side of PET base material
Thickness is 45nm barrier layer；
Deposited metal layer step：Using aluminium film material as evaporation source, sputtering vacuum deposition is harrowed by copper in barrier layer surface and obtained
27ng/cm2Metal level；
Compound first PE layer steps：It is by the compound first PE layers of extrinsion pressing, the first PE layers on the surface of metal level
Low density polyethylene (LDPE), the thickness of the first PE layers is 30 μm；
Print steps：Printed after another side surface progress sided corona treatment to PET base material；
Spray solidification glue step：PET substrate surfaces spraying ultraviolet cured adhesive after printing；
Ultraviolet cured adhesive effectively can play solidification to printing-ink, using after printing ink reduce dizzy dye,
The Probability of deformation；The quantity for spray of ultraviolet cured adhesive is 4mL/m2；
Compound 2nd PE layer steps：The compound 2nd PE layers of 310 DEG C of hot pressing of PET substrate surfaces after solidification glue is sprayed, the
The material of two PE layers is low density polyethylene (LDPE), and the thickness of the 2nd PE layers is 15 μm；And by ultraviolet light hardening with radiation, obtain high stripping
From the composite membrane of intensity.
Performance detection and compliance test result
The composite membrane for the high-peeling strength that 15mm × 200mm embodiment 1-3 obtains is taken, using omnipotent tensile machine T
Type peels away the first PE layers and metal level 50mm, and in terms of 50mm/min, wherein when testing, stripping is invested using wet nonwoven water logging
Face, its peel strength result are as shown in the table：
The immersion peeling strength test result of the composite membrane of the high-peeling strength of table 1
| Peel strength of soaking [N/15mm] | |
| Embodiment 1 | 2.79 |
| Embodiment 2 | 3.04 |
| Embodiment 3 | 3.10 |
As seen from the above table, the composite membrane of the high-peeling strength obtained using this production technology, its peel strength is higher, as
For storing food, pharmaceutical packing material has preferable application prospect.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (7)
1. a kind of production technology of the composite membrane of high-peeling strength, including：
The pre-treatment step of PET base material：Biaxial tension processing is carried out to PET base material；
Deposited barrier layers step：Using aluminum oxide or titanium dioxide as evaporation source, pass through vacuum vapor deposition method in the side of PET base material
Deposition obtains barrier layer；
Deposited metal layer step：Sputtering vacuum deposition is harrowed by copper in barrier layer surface and obtains metal level；
Compound first PE layer steps：In the PE layers of surface recombination the first of metal level；
Print steps：Printed after another side surface progress sided corona treatment to PET base material；
Spray solidification glue step：PET substrate surfaces spraying ultraviolet cured adhesive after printing；
Compound 2nd PE layer steps：The compound 2nd PE layers of PET substrate surfaces after solidification glue is sprayed, and pass through ultraviolet light spoke
According to obtaining the composite membrane of high-peeling strength.
2. production technology as claimed in claim 1, it is characterised in that the pre-treatment step of PET base material includes what is carried out successively
Stretching step, thermostabilization step and step of relaxing in advance.
3. production technology as claimed in claim 2, it is characterised in that the pre-treatment step of the PET base material includes entering successively
Capable following steps：
1) in 120-140 DEG C, PET base material longitudinally, laterally etc. is stretched 2.0-4.0 times to power；
2) by the PET base material after stretching in 200-210 DEG C of thermostabilization；
3) PET base material after thermostabilization is subjected to pre- relaxation processing in 140-160 DEG C.
4. production technology as claimed in claim 1, it is characterised in that in deposited metal layer step, steaming is used as using aluminium film material
Rise.
5. production technology as claimed in claim 1, it is characterised in that in compound first PE layer steps, using extrusion molding work
The compound first PE layers of skill, the material of the first PE layers is low density polyethylene (LDPE).
6. production technology as claimed in claim 1, it is characterised in that in spraying solidification glue step, the ultraviolet cured adhesive
Quantity for spray be 2-5mL/m2。
7. production technology as claimed in claim 1, it is characterised in that in compound 2nd PE layer steps, using thermal bonding process
Compound 2nd PE layers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710617745.6A CN107618197A (en) | 2017-07-26 | 2017-07-26 | A kind of production technology of the composite membrane of high-peeling strength |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710617745.6A CN107618197A (en) | 2017-07-26 | 2017-07-26 | A kind of production technology of the composite membrane of high-peeling strength |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039805A (en) * | 2019-06-04 | 2019-07-23 | 广东中兴塑料纸类印刷有限公司 | A kind of production technology of composite packing film |
| CN112373169A (en) * | 2020-05-09 | 2021-02-19 | 广东爱丽斯包装有限公司 | Preparation method of high-barrier aluminum oxide film |
Citations (2)
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|---|---|---|---|---|
| CN101531264A (en) * | 2009-04-20 | 2009-09-16 | 黄山永新股份有限公司 | Milk powder packing bag and preparing method thereof |
| CN203186750U (en) * | 2013-03-29 | 2013-09-11 | 海宁长宇镀铝材料有限公司 | Air adjusting type packaging bag |
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2017
- 2017-07-26 CN CN201710617745.6A patent/CN107618197A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531264A (en) * | 2009-04-20 | 2009-09-16 | 黄山永新股份有限公司 | Milk powder packing bag and preparing method thereof |
| CN203186750U (en) * | 2013-03-29 | 2013-09-11 | 海宁长宇镀铝材料有限公司 | Air adjusting type packaging bag |
Non-Patent Citations (1)
| Title |
|---|
| 温变英 等: "《高分子材料加工 第二版》", 30 June 2016, 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110039805A (en) * | 2019-06-04 | 2019-07-23 | 广东中兴塑料纸类印刷有限公司 | A kind of production technology of composite packing film |
| CN112373169A (en) * | 2020-05-09 | 2021-02-19 | 广东爱丽斯包装有限公司 | Preparation method of high-barrier aluminum oxide film |
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Effective date of registration: 20191106 Address after: 510000 B, 7th floor, SuiXing industrial building, No. 4, Minghua 1st Street, Guangzhou Economic and Technological Development Zone, Guangdong Province Applicant after: Guangmeng (Guangzhou) Packaging Co., Ltd. Address before: 510530 General Building No. 233 of Guangzhou economic and Technological Development Zone, Guangzhou economic and Technological Development Zone, Guangzhou City, Guangdong Applicant before: Guangzhou Ying map nobelium New Material Co. Ltd. |
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Application publication date: 20180123 |
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